Blue Notes · Umpire Grade2026-06-03
KC @ CIN
Home plate: Cory Blaser
“You had to throw it down Broadway to get the call.”
Umpire Grade
90.3% accurate
Run Favor
runs, CIN
ABS Overturns
of 2 reviewed
What this shows — how Cory Blaser called the 155 pitches that were taken (no swing), graded against the tracked rulebook strike zone. He got 140 right. Below, only his misses are plotted, alongside every pitch the ABS (Automated Ball-Strike System) reviewed on a challenge.
The zone, as he called it
strike called ballball called strikeABS overturnedABS upheld
The calls that moved the game
- 1-0.39▲4 · 2-2 ball called strike
Isaac Collins vs Chase Burns - 2+0.13▼4 · 1-0 strike called ball
Spencer Steer vs Stephen Kolek - 3+0.13▲6 · 1-0 strike called ball
Vinnie Pasquantino vs Chase Burns
Run impact from the count run-value table: a missed strike three is worth far more than one on 3-0.
ABS — the Automated Ball-Strike System
2 pitches went to the robots · 0 overturned (ump overruled) · 2 upheld (ump confirmed). This is Hawkeye ground truth, no model involved.
- 1Tyler Stephenson — ump said ball, robot ruled ball: upheld.
- 2Carter Jensen — ump said ball, robot ruled ball: upheld.
Our tracked-rulebook zone matched the ABS ruling on 1 of 2 — a zone-definition gap (ABS grades a standardized, height-based zone), not our error.